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21 Cards in this Set
- Front
- Back
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skeletal muscle
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striated, voluntary
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Muscle belly
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fleshy part of muscle
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tendons
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at either end of the muscle
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Epimysium
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Connective tissue covering of skeletal muscle that covers the entire surface and is continuous with the perimysium
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circumduction
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a combination of flex/ext, abduct/adduction; cheap rotation - not true.
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Perimysium
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connective tissue covering of muscle that covers the fascicles and is continuous with the epimysium, but is inside the muscle
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endomysium
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connective tissue covering inside muscle; covers each fiber.
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sliding filament theory
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basis of muscular motion
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agonist
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muscles that are prime movers; responsible for a specific motion, basic functions
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antagonist
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does the opposite motion of an agonist
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synergist
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prevents unwanted motion at some joint, to facilitate the motion of a muscle at another joint.
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flexion
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decreasing the angle at a joint (raising the thigh)
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extension
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increasing the angle at a joint (swinging thigh back) occurs in the sagittal plane.
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abduction
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moving away from the midline; occurs in the coronal plane
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adduction
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moving toward the midline; coronal plane
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rotation
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moving a bone around its longitudinal axis; can be medial and lateral
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origin
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proximal to insertion
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smooth muscle
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loosely organized, involuntary
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insertion
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distal to origin
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sarcomere
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a basic unit of the muscle; consists of Fascicles>Fibers>Myofibrils>Myofilaments
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Cardiac muscle
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striated, involuntary
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